STUDY OF PHYSICOCHEMICAL PARAMETERS AND ISOTOPIC CHARACTERISTICS OF MINERAL WATERS OF THE NAGUT DEPOSIT

PZWDMJ

Abstract

Today in Russia there is a system and rules for digital labeling of bottled water using identification means. However, the information encoded in the Data Matrix label does not always clearly indicate the contents of the bottle. To accurately identify mineral waters, the main indicators of salt composition and balneological components (if present) are used. However, current criteria for assessing the quality and safety of mineral waters do not always guarantee the authenticity of packaged water based on geographical and natural characteristics. Expanding the evaluation criteria and their inclusion in relevant databases can solve the problem of adulteration of bottled water, including counterfeit products. This article discusses the development of identification indicators for mineral waters of the Nagutskoye deposit (Stavropol Territory), one of the largest deposits of natural mineral waters in Europe. The experiments were carried out by VNIIPBiVP specialists using the methods of high-performance liquid and gas chromatography, stripping voltammetry, atomic absorption spectroscopy, titrimetry, refractometry and mass spectrometry. The authors studied the physicochemical composition and ratio of oxygen and hydrogen isotopes of medicinal table and medicinal mineral waters of the Nagutskoye deposit. A comparative analysis of the main indicators of bottled mineral waters of various brands showed that the main difference between the studied waters of the Nagutskoye deposit is the level of total mineralization and chloride content. Microcomponents present in water and characteristic of a given deposit, as well as their isotopic characteristics, can act as identification markers. The developed evaluation criteria for mineral waters of the Nagutskoye deposit will allow them to be clearly identified among other similar products